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MetabolomicsEvaluation of sample preparation protocols for quantitative NMR-based metabolomics

INTRODUCTION: Quantification of metabolites in biological fluids and tissues by NMR spectroscopy is challenged by the presence of abundant macromolecules and lipoproteins in samples, which give broad signals in the NMR spectra. To improve the quality of NMR spectra the different ...

2024-07-11 | MTBLS847 | MetaboLights
MetabolomicsUntargeted metabolomics workshop report: quality control considerations from sample preparation to data analysis

The Metabolomics workshop on experimental and data analysis training for untargeted metabolomics was hosted by the Proteomics Society of India in December 2019. The Workshop included six tutorial lectures and hands-on data analysis training sessions presented by seven speakers. The tutorials and ...

2020-12-17 | MTBLS1301 | MetaboLights
MetabolomicsSample Preparation for Integrated Metabolome and Exposome-Wide Association Studies (MWAS/ExWAS)

Exposome- and metabolome-wide association studies rely on advanced instrumentation, typically anchored in liquid chromatography high-resolution mass spectrometry (LC-HRMS) to investigate exposure-effect associations. Sample preparation for biological fluids is a delicate matter since it is essent...

2026-07-20 | MTBLS15100 | MetaboLights
MetabolomicsAssessment of human plasma and urine sample preparation for re-producible and high-throughput UHPLC-MS clinical metabolic phenotyping

Clinical metabolic phenotyping employs metabolomics and lipidomics to detect and measure thousands of metabolites and lipids within human samples. This approach aims to identify metabolite and lipid changes between phenotypes (e.g. disease status) that aid understanding of biochemical mechanisms ...

2020-08-06 | MTBLS1465 | MetaboLights
MetabolomicsUntargeted LC-MS/MS metabolomics of ovary, oviduct fluid, and serum from dogs supplemented with folic acid
This dataset contains untargeted metabolomic profiles of canine ovary, oviduct fluid, and serum samples collected from control and folic acid (FA)-supplemented groups. LC-MS/MS metabolomics was performed in both positive and negative ionization modes to characterize metabolic alterations associated ...
2026-09-07 | MTBLS15493 | MetaboLights
MetabolomicsLC-MS/MS Quantification of Nuclear α-KG in NSCLC
This study contains targeted LC-MS/MS quantification of α-ketoglutarate (α-KG) in NSCLC cells using 13C-labeled α-KG internal standard. Nuclear α-KG levels were measured in A549, A549/DTX, PC9, and PC9/OR cells. In addition, nuclear α-KG was quantified in GLUD1-overexpressing A549 cells and GLUD1-kn...
2026-07-21 | MTBLS15115 | MetaboLights
MetabolomicsMatrix Effect on Chemical Isotope Labeling and Its Implication in Metabolomic Sample Preparation for Quantitative Metabolomics
Matrix effect from various constituents in biological samples can reduce the accuracy of quantitative metabolomics. Differential chemical isotope labeling liquid chromatography mass spectrometry (CIL LC-MS) can overcome the matrix effect on MS detection based on measuring the intensity ratios of met...
2015-07-01 | MTBLS194 | MetaboLights
MetabolomicsUntargeted Metabolomics of Mouse Platelet Pellets by LC-MS/MS
In this study, platelet pellets were isolated from mouse peripheral blood through gradient centrifugation to obtain high-purity platelet samples. Liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based untargeted metabolomics was performed to comprehensively profile the global metabolic chan...
2026-08-04 | MTBLS15244 | MetaboLights
MetabolomicsStreamlining LC-MS/MS Data Analysis in R with Open-Source *xcms* and *RforMassSpectrometry*: An End-to-End Workflow

Despite untargeted LC-MS/MS data being a powerful approach for large-scale metabolomics analysis, a significant challenge in the field lies in the reproducible and efficient analysis of such data, in particular. The power of R-based analysis workflows lies in their high customizability and adapta...

2024-08-26 | MTBLS8735 | MetaboLights
MetabolomicsLC-MS/MS metabolomics unravels the resistant phenotype of carbapenemase-producing Enterobacteriaceae

Introduction: The degree of antimicrobial resistance demonstrated by carbapenemase-producing Enterobacteriaceae (CPE) represents a growing public health challenge. Conventional methods for detecting CPE involve culture-based techniques with lengthy incubation steps. There is a ne...

2025-08-04 | MTBLS10129 | MetaboLights
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